build: improve treeshakeability (#5682)

packages/runtime-core/src/componentPublicInstance.ts

@@ -223,9 +223,10 @@ const getPublicInstance = (
   return getPublicInstance(i.parent)
 }
 
-export const publicPropertiesMap: PublicPropertiesMap = /*#__PURE__*/ extend(
-  Object.create(null),
-  {
+export const publicPropertiesMap: PublicPropertiesMap =
+  // Move PURE marker to new line to workaround compiler discarding it
+  // due to type annotation
+  /*#__PURE__*/ extend(Object.create(null), {
     $: i => i,
     $el: i => i.vnode.el,
     $data: i => i.data,
@@ -240,8 +241,7 @@ export const publicPropertiesMap: PublicPropertiesMap = /*#__PURE__*/ extend(
     $forceUpdate: i => () => queueJob(i.update),
     $nextTick: i => nextTick.bind(i.proxy!),
     $watch: i => (__FEATURE_OPTIONS_API__ ? instanceWatch.bind(i) : NOOP)
-  } as PublicPropertiesMap
-)
+  } as PublicPropertiesMap)
 
 if (__COMPAT__) {
   installCompatInstanceProperties(publicPropertiesMap)
@@ -456,8 +456,8 @@ export const PublicInstanceProxyHandlers: ProxyHandler<any> = {
   ) {
     if (descriptor.get != null) {
       // invalidate key cache of a getter based property #5417
-      target.$.accessCache[key] = 0;
-    } else if (hasOwn(descriptor,'value')) {
+      target.$.accessCache[key] = 0
+    } else if (hasOwn(descriptor, 'value')) {
       this.set!(target, key, descriptor.value, null)
     }
     return Reflect.defineProperty(target, key, descriptor)

packages/runtime-core/src/scheduler.ts

@@ -47,7 +47,7 @@ const pendingPostFlushCbs: SchedulerJob[] = []
 let activePostFlushCbs: SchedulerJob[] | null = null
 let postFlushIndex = 0
 
-const resolvedPromise: Promise<any> = Promise.resolve()
+const resolvedPromise = /*#__PURE__*/ Promise.resolve() as Promise<any>
 let currentFlushPromise: Promise<void> | null = null
 
 let currentPreFlushParentJob: SchedulerJob | null = null